this is what michelle obama had to say. >> i want to say how truly heart-broken barack and i are about the horrific tragedy that occurred earlier this week in libya. i'm not sure if everyone is aware. but our hearts and prayers are with the families of those who gave their lives serving our country. >> reporter: now, mitt romney had his rally in the heart of fairfax today. his comments about the unrest in et middle east yesterday caused some controversy. so today he tried to turn the focus back to the economy. >> mitt romney! >> reporter: a crowd of more than 2,000 cheered mitt romney's arrival in fairfax and he began by acknowledging the attack on the attack on the u.s. consulate in libya. >> we're thinking about their families and those that they left behind. what a tragedy to lose such a wonderful -- >> reporter: governor's plan for a moment of silence was cut short by a heckler, for his criticism of the obama administration reaction to the unrest. high-level republicans accused romney of speaking too quickly before all the facts were known. >> i don't really have a problem with wha